Allyson Felix, who was targeting four gold medals in Beijing, has failed to make the United States' 100m team. She finished only fifth in the 100m final at the US trials in Eugene in 10.96sec and will now concentrate on the 200m later in the week and places in both relays.

"I'm definitely disappointed," she said. "The whole reason for running the 100 is to make the team. But I can't get too down. I still have the 200 to go." Muna Lee won in 10.85 and said: "I was coming in here just trying to make the team. I felt really well, blasting at the beginning and feeling relaxed at the end." The other two slots went to Torri Edwards and Lauryn Williams, two former world champions who both finished in 10.90.

In the men's shot the world champion, Reese Hoffa, Christian Cantwell and the two-times Olympic silver medallist Adam Nelson led the way as expected. In the heptathlon Hyleas Fountain, Jacquelyn Johnson and Diana Pickler all qualified.